https://doi.org/10.1140/epjp/s13360-023-04474-4
Regular Article
Static isotropic pressure induced semiconductor–metal transition and its impact on structural, electronic, elastic, mechanical and optical properties of SrCeO3
1
Department of Physics, University of Engineering and Technology Lahore, 54000, Lahore, Pakistan
2
Department of Physics, Government College University Lahore, 54000, Lahore, Pakistan
3
Department of Physics, Lahore College for Woman University Lahore, 54000, Lahore, Pakistan
4
Department of Physics, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan
Received:
21
July
2023
Accepted:
13
September
2023
Published online:
25
September
2023
The main motive of this study is to investigate the structural, mechanical, and optoelectronic changes upon applied pressure from 0–174 GPa on SrCeO3. We are keen to observe changes in the electronic band gap and how they affect optical properties. From structural properties, it is observed that there is no phase shift, and a reduction in the lattice parameters is seen with applied pressure. The transition from p-type semiconductor (2.266 eV) to conductor (0 eV) is noticed from the electronic band structure results. The SrCeO3 satisfies Born's stability requirements up to 100 GPa pressure, and above 100 GPa structure is not mechanically stable. Pugh ratio and Frantsevich ratio tell that SrCeO3 exhibits ductile behavior at every pressure. Cauchy pressure and the Poisson ratio also support the same behavior, and the nature of bonding is metallic. The static refractive index 
moves toward higher energy values from 2.281 to 3.241. We know that metals have a high refractive index, so increasing the refractive index on applied pressure confirms the transition from semiconductor to conductor. We observed that this material would act effectively as a UV filter application from the optical properties because its absorption spectra lie within the ultraviolet region.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
